Importance of microstructural stability in creep resistance of lamellar TiAl alloys

Yamaguchi, M.; Zhu, H.; Suzuki, M.; Maruyama, K.; Appel, F.

Journalpaper

Importance of microstructural stability in creep resistance of lamellar TiAl alloys

Abstract

Creep behavior of lamellar Ti–45Al–8Nb–0.2C (in mol%) alloy was studied paying special attention to microstructural degradation during creep. Minimum creep rate of Ti–45Al–Nb–C is reduced to 25% of that of binary Ti–45Al. Nb retards recovery of dislocations. Nb and C addition stabilizes lamellar microstructure. As a result, lower minimum creep rate and slower creep acceleration in tertiary creep are attained in the TiAl alloy with Nb and C.

DOI Link to Publication

URL: https://publications.hereon.de/id/25843/
Authors:Yamaguchi, M., Zhu, H., Suzuki, M., Maruyama, K., Appel, F.
Year:2008
In: Materials Science and Engineering A
Volume:483-484
Pages:517 - 520
Publisher:Elsevier
Type:Journalpaper
ISSN: 0921-5093
Cite as: Yamaguchi, M.; Zhu, H.; Suzuki, M.; Maruyama, K.; Appel, F.: Importance of microstructural stability in creep resistance of lamellar TiAl alloys. In: Materials Science and Engineering A. Vol. 483-484 (2008) 517 - 520. (DOI: 10.1016/j.msea.2006.09.147)